Comparison

Flexer vs Rondo

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Flexer

This app makes tracking gym workouts engaging and simple. Log sets, reps, and weights effortlessly, access a large exercise library, and visualize your progress with charts. Gamified elements like trophies and streaks keep you motivated to achieve your fitness goals.

Highlights
  • Vast exercise library with instructions
  • Effortless workout logging
  • Progress visualization with charts
  • Gamified fitness experience
  • Trophy and streak system
  • Personal record tracking
Features
Read full description

Get addicted to working out. Flexer revolutionizes your gym experience, transforming fitness tracking into an engaging and rewarding journey. With its sleek, intuitive interface, Flexer simplifies the entire workout process, making it accessible for beginners and indispensable for seasoned lifters alike. Vast Exercise Library: Access over 300 expertly curated exercises, complete with detailed instructions and muscle targeting information. Whether you're into powerlifting, bodybuilding, or general fitness, Flexer has you covered. Effortless Workout Tracking: Log your sets, reps, and weights with just a few taps. Flexer's user-friendly design ensures you spend less time on your phone and more time crushing your workout. Progress Visualization: Watch your fitness journey unfold with beautiful, easy-to-understand charts and graphs. Track your personal records (PRs) for each exercise and see your strength grow over time. Gamified Fitness Experience: Earn trophies for hitting milestones, keep your motivation high with streaks, and dive into in-depth exercise stats that help you optimize your routine. Flexer transforms every workout into a challenge, motivating you to push your limits and celebrate your achievements. Get addicted to working out as you rack up wins and track your progress like never before. Download Flexer today and turn your workouts into a game that you’ll want to keep playing.

About

Rondo

Features
Read full description

Rondo is a focused interval timer for building and running repeatable routines. Create simple work/rest timers in seconds, or build custom sequences with phases, repeat blocks, and sets. Use it for workouts, HIIT, Tabata, EMOM-style sessions, stretching, study blocks, rehearsals, recovery routines, or any activity that needs structured timing. Features: - Quick Setup for fast interval timers - Custom sequences with phases, repeats, and sets - Saved timers for routines you use often - Session history with completed and interrupted runs - Sound, speech, haptic, and local notification alerts - Offline-first design with no account required - Local backup and restore Rondo keeps your timers, settings, and history on your device. No sign-in, no tracking, and no cloud sync required. Privacy policy: https://rondo.anlivio.com/privacy Terms of use: https://rondo.anlivio.com/terms

Screenshots

Flexer4 screens
Rondo4 screens

Verdict

The call

The clearest difference is in-app purchases: Rondo at none against Flexer's 11. Flexer's advantage is update cadence (every 2 days vs every 2 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Flexer sells 11 in-app purchases, starting at $4.99 per 7 days. Rondo asks for nothing beyond the download.

UpkeepUpdate frequency

Flexer ships an update every 2 days, Rondo every 2 weeks. The most recent releases landed on October 12, 2026 and October 6, 2026 respectively.

Scorecard2 real differences · 8 level
Flexer versus Rondo: the parameters behind the verdict, then further details
ParameterFlexerRondo
PriceFreeFree
Rating4.7 (28 ratings) — better—
Positive reviews94.7% of reviews—
Number of ratings28 — better—
Update frequencyEvery 2 days — betterEvery 2 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone, iPad — better
Requires iOS17.5 — better18.0
Further details — not scored
Size123 MB3 MB
Age rating4+4+
DeveloperTrembath Apps LLCAnton Litmansky

In-app purchases

11 purchases

Flexer

Subscriptions11
  • Flexer$4.997 Days
  • Flexer7 Days trial$4.997 Days
  • Flexer Monthly$9.991 Month
Show 8 more
  • Flexer Pro Monthly7 Days trial$11.991 Month
  • Flexer$14.991 Month
  • Flexer monthly$19.991 Month
  • Flexer Yearly$59.991 Year
  • Flexer Pro Yearly7 Days trial$69.991 Year
  • Flexer$89.991 Year
  • Flexer7 Days trial$95.991 Year
  • Flexer Yearly$95.991 Year
None

Rondo

No in-app purchases

Questions

Is Flexer free?
Flexer is free to download, with in-app purchases available.
Is Rondo free?
Rondo is free to download, with no in-app purchases.
Do Flexer or Rondo have ads?
Neither Flexer nor Rondo shows ads.
Which is updated more often, Flexer or Rondo?
Flexer ships an update every 2 days, and Rondo every 2 weeks. Most recently, Flexer was updated on October 12, 2026 and Rondo on October 6, 2026.

Other comparisons